申请人:Shiseido Company, Ltd.
公开号:EP2250999A1
公开(公告)日:2010-11-17
The present invention provides a compound having an excellent inhibitory action on melanin production and being useful as a whitening agent, and a skin external preparation containing the compound. The whitening agent of the present invention comprises, as an active ingredient, a compound represented by formula (1) or a pharmacologicallyacceptable salt thereof:
wherein, R1, R3, R4, and R6 are each independently C1-3 alkyl; and R2 and R5 are each independently a hydrogen atom or C1-3 alkyl.
本发明提供了一种对黑色素生成具有极佳抑制作用并可用作美白剂的化合物,以及一种含有该化合物的皮肤外用制剂。本发明的美白剂包括作为活性成分的式 (1) 所代表的化合物或其药理上可接受的盐:
其中,R1、R3、R4 和 R6 各自独立地为 C1-3 烷基;R2 和 R5 各自独立地为氢原子或 C1-3 烷基。